<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        p{
            font-size: 20px;
            font-family: "Arial Black" ;
        }
        a{
            /*链接下划线*/
            text-decoration: underline;
            /*链接上划线*/
            text-decoration: overline;
            /*删除线*/
            text-decoration: line-through;
            /*无线*/
            text-decoration: none;

        }
        div{
            width: 200px;
            height: 140px;
            border: 5px solid black;
            text-align: center;
            /*行高 用于上下对齐*/
            line-height: 110px;
        }
        h4{
            /*阴影便宜 水平 竖直 虚化度 颜色*/
            text-shadow: 5px 5px 5px #06376d;
        }
    </style>
</head>
<body>
<p>我是测试及文字 123</p>
<a href="#">超链接</a>
<div>块级分区元素</div>
<span>行内分区元素</span>
<h4>标题</h4>
</body>
</html>